PTHREAD_SIGMASK(2) BSD System Calls Manual PTHREAD_SIGMASK(2)NAME
pthread_sigmask -- examine and/or change a thread's signal mask
SYNOPSIS
#include <signal.h>
int
pthread_sigmask(int how, const sigset_t *restrict set, sigset_t *restrict oset);
DESCRIPTION
The pthread_sigmask() function examines and/or changes the calling thread's signal mask.
If set is not NULL, it specifies a set of signals to be modified, and how specifies what to set the signal mask to:
SIG_BLOCK Union of the current mask and set.
SIG_UNBLOCK Intersection of the current mask and the complement of set.
SIG_SETMASK set.
If oset is not NULL, the previous signal mask is stored in the location pointed to by oset.
SIGKILL and SIGSTOP cannot be blocked, and will be silently ignored if included in the signal mask.
RETURN VALUES
If successful, pthread_sigmask() returns 0. Otherwise, an error is returned.
ERRORS
pthread_sigmask() will fail if:
[EINVAL] how is not one of the defined values.
LEGACY SYNOPSIS
#include <pthread.h>
#include <signal.h>
The include file <pthread.h> is necessary.
SEE ALSO sigaction(2), sigpending(2), sigprocmask(2), sigsuspend(2), sigsetops(3), compat(5)STANDARDS
pthread_sigmask() conforms to ISO/IEC 9945-1:1996 (``POSIX.1'')
BSD April 27, 2000 BSD
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PTHREAD_SIGMASK(3) BSD Library Functions Manual PTHREAD_SIGMASK(3)NAME
pthread_sigmask -- examine and/or change a thread's signal mask
LIBRARY
POSIX Threads Library (libpthread, -lpthread)
SYNOPSIS
#include <pthread.h>
#include <signal.h>
int
pthread_sigmask(int how, const sigset_t * restrict set, sigset_t * restrict oset);
DESCRIPTION
The pthread_sigmask() function examines and/or changes the calling thread's signal mask.
If set is not NULL, it specifies a set of signals to be modified, and how specifies what to set the signal mask to:
SIG_BLOCK Union of the current mask and set.
SIG_UNBLOCK Intersection of the current mask and the complement of set.
SIG_SETMASK set.
If oset is not NULL, the previous signal mask is stored in the location pointed to by oset.
SIGKILL and SIGSTOP cannot be blocked, and will be silently ignored if included in the signal mask.
RETURN VALUES
If successful, pthread_sigmask() returns 0. Otherwise, an error is returned.
ERRORS
The pthread_sigmask() function will fail if:
[EINVAL] how is not one of the defined values.
SEE ALSO sigaction(2), sigpending(2), sigprocmask(2), sigsuspend(2), sigsetops(3)STANDARDS
The pthread_sigmask() function conforms to ISO/IEC 9945-1:1996 (``POSIX.1'')
BSD February 19, 2011 BSD
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